Philippine authorities believe they have found the location of a tanker that sank off a central province last week, the environment ministry said on Monday, amid a race to assess the extent of an oil spill and contain further environmental damage.The tanker, the MT Princess Empress, is thought to be lying at about 1,200 feet (366 meters) below sea level, off Oriental Mindoro province, though the information still needed to be verified, the ministry said in a statement.A remotely operated vehicle would be deployed to help determine the exact location of the tanker…